Energy transfer in the plasma wake-field accelerator.
Energy transfer in the plasma wake-field accelerator.
复制标题
等离子体尾流场加速器中的能量传输。
DOI：
10.1103/physrevlett.56.1252
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发表时间：
1986
影响因子：
8.6
通讯作者：
P. Wilson
中科院分区：
文献类型：
--
作者：
Pisin Chen;J. Su;J. Dawson;K. Bane;P. Wilson
The transfer of energy from the driving beam to the trailing beam in the plasma wake-field accelerator is studied in computer simulations. We show that with an asymmetric current distribution in the driving bunch, trailing particles can gain energies up to ${(1+k_{p}^{}{}_{}{}^{2}{Z}^{2})}^{\frac{1}{2}}\ensuremath{\Delta}\ensuremath{\gamma}m{c}^{2}$, where $Z$ is the bunch length and $\ensuremath{\Delta}\ensuremath{\gamma}m{c}^{2}$ the average energy loss of driving electrons. Because of the relative phase slippage and the two-stream instability, the process of energy gain degrades before the driving beam loses all of its energy; however, even for ${\ensuremath{\gamma}}_{i}=150$, $\frac{\ensuremath{\Delta}\ensuremath{\gamma}}{{\ensuremath{\gamma}}_{i}}\ensuremath{\gtrsim}70%$, with an energy gain \ensuremath{\sim} 1 GeV. Transverse effects are briefly discussed.
The transfer of energy from the driving beam to the trailing beam in the plasma wake-field accelerator is studied in computer simulations. We show that with an asymmetric current distribution in the driving bunch, trailing particles can gain energies up to ${(1+k_{p}^{}{}_{}{}^{2}{Z}^{2})}^{\frac{1}{2}}\ensuremath{\Delta}\ensuremath{\gamma}m{c}^{2}$, where $Z$ is the bunch length and $\ensuremath{\Delta}\ensuremath{\gamma}m{c}^{2}$ the average energy loss of driving electrons. Because of the relative phase slippage and the two-stream instability, the process of energy gain degrades before the driving beam loses all of its energy; however, even for ${\ensuremath{\gamma}}_{i}=150$, $\frac{\ensuremath{\Delta}\ensuremath{\gamma}}{{\ensuremath{\gamma}}_{i}}\ensuremath{\gtrsim}70%$, with an energy gain \ensuremath{\sim} 1 GeV. Transverse effects are briefly discussed.